Coin controlled locking mechanism



3 sheets-.shea 1 E. w. MccARRoLL ETAL COIN GONTROLLED LOCKING MECHANISM Oct. 28, 1941.

Filed May 2, 1938 Oct, 2.8, 1941. E. w. MCCARROLL ET AL. 2260,95()

COIN AC'ONIROLLED LOCKING MECHANISM Filed May 2, 1958 3 sheets-sheet 2 nigEl Oct. 2s, 12941,

E. w. MdcARRoLL ETAL COIN CONTROLLED LOCKING MECHANISM Filed May 2, 1938 5 sheets-sheet 3 l.yi555415554515.

la illllflldl lill, lll/vlA 1 ll I II 74 Il!!! 'lill/lill!! Patented Oct. 28, 1941 COIN CONTROLLED LOCKIGMECHANIS'M Edward W. McCarroll and Henry Hansen, Chicago, Ill.; McCarroll said Hansen assigner to said Application May 2, 1938; Serial No. 205,516

8 Claims.

The inven-tion relates to coin-controlled locks.

One object of the invention is to improve the construction and operation of coin-controlled locks of that type in which deposit of a coin and the operation of a key are necessary to release the key and permit the depositor to carry it away until such time as he may replace the key in the lock, whichtype is usually used for coincontrolled lockers or closetsv for which a service charge is made.

Another object of the invention is to provide a lock of that type which is simple in construction and efficient in use.

Other objects will appear from the detailed description.

The invention consists in the several novel features which are hereinafter set forth and are more particularly deiinedby claims at the conclusion hereof.

In the drawings: Fig. 1 is a front elevation of a cabinet to Whichseveral ofthe improved locks are applied. Fig'. 2 is a perspective of the locking mechanism on its mounting plate. Fig. 3 is a perspective of the bracket which supports the locking mechanism and is detachable from the mounting plate. Fig. 4 is a perspective of a portion ofl the channel bar between the lockers, which is adapted to receive the mounting plate for the locking mechanism. Fig. 5 is a section on line 5f-5 of Figs. 6 and '7. Fig. 6 is a vertical section taken on line 6-6 of Fig. 5. Fig. 6a is a sectionall perspective illustrating the lug for holding the bracket in whichv the coin-controlled locking-mechanism is supported, in the mounting-plate on which the bracket is removably carried. Fig. 7 is a section taken on line yl-l of Fig. 6. Fig. 8 is a perspective of the latching device for locking the locking bolt for the lockerdoor againstI retraction. Fig. 9 is a vertical section through the coin slide illustrating the arm for controlling the dog for locking of the coinslide against operation until a coin has been deposited. Fig. 10 is a section taken on line lil-I0 of Fig. 5 illustrating the normal position of the dog for arresting the said slide. Fig. 11 is a section taken on line 5-5 of Figs. 6 and 7, illustratl ing the coin-slide after it has been shifted to its lowered position. Fig. 12 is a section on line l2-I2 of Fig. 11. Fig. 13 is a front elevation illustrating' the device for controlling the latch for the locking bolt illustrating the position of the latch-releasing lever when the lockingl bolt has been retracted. Fig. 14 is a similar view illust'rating the position of the latch-releasing leyer' after the key has been turned to lock the locking.` bolt. Fig. 15 is'a similar view illustrating the latch-releasing. lever when the key has been reinserted. Fig. 16 is a vertical section through the keyecontrolled cylinder lock. Fig. 1-7 is a front View ofthe portion of the mounting-plate which carries the' cylinder lock.

The invention is exemplified in coin-controlled locking mechanism which is mounted on a plate 20 which is' provided with rearwardly extending integral side-flanges 2| and is. adapted to t into a suitable recess or cutaway of a channel-bar 22 which forms a standard or part of the frame'- work of the locker cabinetvv and is usually dis-v posed at the sides or between the tiers of locker-'doors 23. Plate 2U is removably held in the standard 22 so that the mounting: plate 2U with the coin-controlled locking mechanism thereon, may be placed into and removed from the standard 22'. Plate 20 ts in an opening in the front of the standard 22 andv is provided at its lower end with a` tonguev 25, which laps and engages theback face of standard 22 to position the lower end of plate 20 in the opening. At its `upper end, plate 20 isl heldin the opening in the front face of standard 22 by a locking member 2B, which is controlled by a key-operable lock 25 and engages thel rear edgev of the cross-member of a strip` which is/Welded to standard 22. The upper portion of the back face of plate' 20 engages the front edge of legs 3ll which are integral with cross-member 80, so that when member 26 is engaged with member 80 the plate 2B will be se cured in the rstandard 22. When locking-member 26 is turnedv downwardly, to clear member 8U,- the upper portion of plate 2l) will befree' to swing forwardly until tongue 24 can be moved upwardly and through the opening in the stand'- ard 22, to remove' the platel 20 and parts thereon from the standard 22. A coin-controlled locking mechanism is used for each locker door 2?)V of the cabinet.- TheseZ locks are identical in construction so that a description of one will be applicable to' all'.

The entire coin-controlled locking mechanism is' supported inand by a bracket 21. This bracket is removably secured to thev back of mounting-plate 20, so that it may be unitarily removedl with the locking mechanism when repair or substitution of the locking mechanism is necessary or desirable. For this purpose, bracket 21 is` secured toy the back of` plate 20 by integral lugs 29 which t into" slots in one of the sideflanges 2| of plate 2U (Fig. 6a), and a lug 30 which is secured to bracket 21 by. a thumb-screw 3l and adapted to extendv intova slot 32 in the other side-flange 2| of plate 29. When screw 3| is removed, lug 39 can be withdrawn from slot 32 and then bracket 21 and the parts mounted thereon can be swung backwardly on lugs 29 until the opposite side of the bracket clears the flange 2| in which slot 32 is located and then the bracket can be moved laterally to withdraw lugs 29 from the slots in the opposite flange 2|. This permits the bracket 21 and the locking mechanism mounted thereon to be unitarily removed from plate 29 for replacement or repair. By reverse manipulation of the bracket, it can be placed and secured on the back of the mountingplate.

The locking mechanism for each door 23 comprises a laterally slidable bolt 34', which extends through one of the flanges 2| of mounting plate 29 and into a suitable slot on said door, and a cylinder lock 35 of any suitable construction which is operable by a key 36.

Bracket 21 comprises a member 21a, the front face of which ts against the back face of mounting plate 29 and a member 21b which projects rearwardly and approximately at right angles from member 21a. Bolt 34 is slidably mounted in bracket member 21a and cylinder-lock 35 extends rearwardly from, and is mounted in, bracket member 21a.

. A coin-receiving and shifting slide 38 is slidable in a vertical guide-channel 31 formed in bracket member 21b which extends at right angles to the front-wall of the mounting-plate 29. A lever 39 is fixed by a nut 49 to rotate with the barrel of cylinder lock 35 and comprises an arm 39a, the terminal of which is extended into a slot 4| in bolt 34 for shifting the bolt through the cylinder lock and an arm 39b which extends into a slot 42 in the coin-slide 36 for shifting said slide when the barrel of the cylinderlock is rotated. Bracket-member 21a is provided with an arcuate slot 44 to permit arm 39a of lever 39 to slide bolt 34 in said member and bracket-member 21D is provided with an elongated slot 45 for permitting arm 39b of lever 39 to swing for shifting slide 38.

The lever 39 serves to operate the bolt 34 and coin-slide 38. The coin-controlled means for controlling the operation of the coin-slide and bolt 34 through lever 39, comprises a dog 46 which is pivoted at 41 to bracket-member 21h, is

provided with a terminal 46a, which is adapted to enter a slot 49 in coin-slide 38, has an abutment 46h which is adapted to engage a coin .r held in the coin-slide, is normally pressed by a spring 48 to swing toward the coin-slide, and is integral with an arm 56 which extends through a slot in one side of bracket-member 21h, and is adapted to ride on the coin-slide and to extend into a vertical slot 51 in said slide. Normally lever 46 and arm 56 are in the positions illustrated in Figs. 9 and l0, at which time arm 56 will engage one face of coin-slide 38 to hold terminal 46a out of engagement with the coin-slide and abutment 4Gb will be out of channel 31 to permit a coin to drop into the channel into position to be arrested by abutment 53e on the coinslide. A hook-shaped cam 56a is pressed by a spring 56b so as to extend under the lower end of coin-slide 38 and press the slide upwardly into the normal position illustrated in Figs. 6, 9 and l0. The slide when lowered swings cam 55 against the force of spring 56D out of the path of the slide. When lever 39 is rotated by the key 36 in the cylinder lock, the coin-slide 38, after it has been moved a short distance, will release CII arm 56 and permit the slide to press arm 56 into slot 51 in the coin-slide, whereupon the terminal 46a of dog 46 will be pressed by spring 48 into slot 49 in the coin-slide and arrest the coinslide against further movement and also prevent bolt 34 from being shifted into its locking position, unless a coin has been deposited in the coin-slide.

A coin-insertion slot 59 extends through mounting-plate 29 and bracket-member 21a, for edgewise deposit of a coin. Slot 59 communicates with a channel 31 in bracket-member 21b which extends in the plane of the coin-slide 38.

A coin-pocket or recess 53 is formed in the front portion of coin-slide 58 to receive the coin from slot 59 and retain it in channel 31. The lower end of the pocket 53 terminates in a shoulder 53a, which coacts with a shoulder 53b on bracket-member 21D to hold the deposited coin in the position illustrated in Fig. 5. The upper end of the coin-pocket terminates in a shoulder 53c which is adapted to abut against the coin and positively shift it downwardly to discharge the coin from channel 31.

When a coin has been deposited through slot 59 and is arrested by shoulder 53a on the coinslide and shoulder 53h, and the key 36 is turned to shift bolt 34 into its'locking position, the coin will arrest abutment 46b on dog 46 and prevent the dog from entering slot 49 and arresting the coin-slide. As a result, the coin-slide 38 will be free to be shifted downwardly by lever 39 a sufcient distance to Apermit said lever to shift bolt 34 into its fully-extended locking position to lock the locker-door 23. The coin-slide will be shifted into position illustrated in Fig. 11, at which time the coin :c will be held by a straight edge 53e and the flange 24 on the mounting-plate 29 until the coin-slide is retracted to its normal position.

In practice, the depositor is required to Withdraw the key before making it possible to unlock the cabinet and to prevent the repeated locking and unlocking of the cabinet by the key without requiring payment of a coin for each use. For this purpose, a latch 69 which is pivoted at 6| to the inner face of bracket-member 21a, has a terminal which extends through a slot 62 in the guide for bolt 34 and is adapted to successively enter notches 63 in the upper edge of bolt 34 for preventing retraction of the bolt until the key 36 has been withdrawn from the cylinder-lock 35. Latch 69 is controlled by a lever 64 which is fulcrumed at 65 on latch 69 and comprises an arm 66 to which a spring 61 is applied and a lower terminal 68, which is adapted to be engaged bythe key 36. The cylinder of lock 35 is cut away, as at 69, so that terminal 68 is engageable by the key 36. Spring 61 presses downwardly on arm 66 to swing lever 64 to the right towards a stop-ledge 21e on bracketmember 21a and also through fulcrum 65 presses latch 69 downwardly. When the locker is unlocked, the cylinder lock 35, key 36 and lever 64 will be in the position illustrated in Fig. 13. At this time the free end of latch 69 will rest on the upper edge of bolt 34, notches 63 in bolt 34 will be disposed inwardly of said latch and lever terminal 68 will be disposed at one side of an abutment 36a on key 36. During the turning of key 36 to the left from the position shown in Fig. 13, to its vertical position to fully project the bolt 34, one face of abutment 3ba on key 36, which is exposed in the cutaway 69 of the rotatable barrel of lock 35, will engage the right-hand edge of lever terminal '68 and swing lever 64 to the `left without disengaging the latch from bolt 34, asillustrated in Fig. 14. As a result, latch 63 will. successively drop into notches 63 and prevent retraction of bolt 64 during its shift to, and when it'l'ias` been shifted into, its projected or locking position. Bolt 34 will then be locked by latch 68 against retraction by the key so that the cylinder can not be reversely rotated. This prevents the user from retracting the bolt 34 until the key 36 has been withdrawn from lock 35.

When key 36 is withdrawnfrom lock 34, terminal 68 will be pressed toswing into its vertical position against stop-ledge 21e so its lower end will project across the key-slot in lock 35. When the key is next inserted in lock 35, the inclined inner end of abutment 36a on the key will engage the lower end of lever terminal 68 and lift the lever so it will swing latch 60 upwardly and withdraw it from notch 63 so that the bolt 34 will be released, as illustrated in Fig. 15. The lock 35 will then be free to be reversely rotated by the key to retract bolt 34 and coinslide 38 into their respective normal positions. The depositor will then turn key 36 and lock 35 to retract bolt 34. During this rotation, the abutment 36a of the key will pass away from the lower edge of terminal 68 and then into position shown in Fig. 13. Spring 51v will then force lever 64 downwardly into the position illustrated in Fig. 13 and the latch will be operative for the succeeding operation of lock 35 to project bolt 34.

.When the coin-slide 38 is lifted to its normal position (Fig. straight edge 53e on the slide will pass above the coin resting on ange 24 and into position shown in Fig. 5, so the coin will loe released and discharged in a coin-box usually provided at the lower end of the standard 22. This construction causes the coin to be retained in the channel 31 of bracket 21 while the locker is in use so that an inspector, by unlocking the locking-bolt 26 and removing the mounting-plate 28 and the entire locking mechanism, can inspect the deposited token. If a slug or false token has been deposited, alocking mechanism with a different cylinder-lock or a dummy-plate 28 may be substituted so the'depositor will not have access to the locker with the key. The vertical travel of coin-slide 38 is limited by a stop-pin 5|, xed in bracket-member 21b and extending through a slot 5 la in the coin-slide. A depending closure-plate 59 on, and slidable with, bolt 34- is movable in a recess 59a in the outer face of bracket-member 21a,v for closing the coin-slot 58 in plate 20 after the initial turning movement of the cylinder-lock to project bolt 34.v Closure-plate 59 locks the slot 5D and prevents the deposit of a second coin until the bolt 34 has been retracted to unlock the locker-door and the coin-controlled slide 38 is back in its normal position.

The standard 22 (Fig. 4) has welded to the inner faces of its side-anges, a strip or plate which comprises a cross-member 80 and legs 8l to reinforce the standard where it is engaged by the bolt 26 for locking the mounting-plate in the standard. Bolt 26 engages the back of the crossmember 88. Legs 8l project forwardly from the cut-away portions in the side-flange of standard 22 in which the side-flanges 2l of the mountingplate 20 are confined, so they will be overlapped by flanges 2| of the mounting-plate, and the mounting-plate will be xedly held against lateral movement in standard 22. This construction firmly secures the mounting-plate in the standard and reinforces the standard.

The cylinder-.lock 35 (Fig. 16) may be of any suitable construction, usually including a barrel 35d rotatable in the cylinder 35e and key-shiftable tumblers 35D slidably mounted in said barrel. The front of the mounting-plate 28 is provided with a circular opening 83 in a forwardly embossed rim 84. A notch (Fig. 17) is formed in rim 84 to permit the member 36a of the key to pass into the barrel 35d and a notch 36e is formed in the key. Notch 85 is located to permit insertion and .withdrawal of the key when the bolt 34 is inits locked position. A notch 36e is formed in key 36 to receive the rim 84 and permit the key to be rotated from the locking position to its unlocked position. The rim prevents with-A drawal of the key from the lock 35 except when said lock is turned to shift bolt 34 into Aits doorlocking position.

A counter or register 10 is provided to indicat the number of coins which are deposited and the number of uses made of the locker. This register 10 may lbe of standard construction and provided with suitable counter-wheels and an arm 1I adapted during each oscillation to step lthe counter up one point. This register is supported in a bracket 13 which is secured to the back of mounting-plate 20. A bar 12 for operating arm 1| is mounted to slide in a vertical channel in bracket 13 and is provided with a notch 14 for a stud on the end of arm 1| for operatively engaging said arm. A pin 15 fixed in bracket 13 extends into a recess 16 in bar 12 and limits the up-and-down strokes of said bar. At its lower end bar 12 is provided with an abutment 11 adapted to be engaged |by an abutment 18 on coin-slide 38 for operating the counter. These abutments provide a lost-motion connection between coin-slide 38 and the register operating bar 12, which avoids the use of springs, and permits a long stroke of the coin-slide 38 to produce a short stroke of said bar. This construction is such that the coin-slide can be readily separated from the register-shifting bar when the locking mechanism is unitarily removed or replaced by manipulation of the bracket 21, as hereinbefore described. I

When a coin is deposited through slot 58, it will be retained on shoulders 53a and 53e (Fig. 5) and abutment 46h on dog 46 will then be arrested by the coin and retain the dog so that it can not swing into slot 49 of the coin-slide 38. The depositor then turns key 36 to the left and will, through arm 393, slide bolt 34 into its locking position and, through arm 39", operate coinslide 38 downwardly until a full stroke has been imparted to said bolt and slide. During this downward movement of slide 38, pocket 53 in slide 38 will pass below abutment 53b and the coin will drop to the point where it will be retained by edge 53e which is formed on the coin slide and flange 24 (Fig. 11) until the coin-slide is lifted to its normal position, when the coin will be discharged into the coin-tbox. During the Vdownward movement of the `coin-slide 38, the side ofv member36a of key 36 (Fig. 14) will engage the lower end of terminal 68 and swing lever 64 on its fulcrum 65.

The operation will be as follows: normally, when the door 23 is unlocked the key 36 will be retained in the cylinder lock 35 by rim 84 of the mounting-plate 26, the notch 36B on the key 36 being then out of registry with the. notch 85. If the key 35 is turned slightly to. the left, `arm 56 will pass into slot 51 under the influence of spring 48 and terminal 46a of dog 46 will enter slot 49 and prevent further movement of the coin-slide and rotation of the key and lock 35, against the orcr of spring 61 without lifting latch 60 from bolt 34. During the out-stroke of bolt 34, latch 6l) will drop successively into notches 63 in bolt 34 and lock said bolt against retraction. This will prevent the key 36 from being reversely rotated to retract bolt 34. When key 36 is withdrawn from lock 35, lever 64 will swing into position against ledge 2'!e and across the key-slot. When the key is again inserted, its member 36a will slide under lever 68 and lift fulcrum 65 to swing latch 60 out of the notch 63 and release bolt 34 so that the key 36 can be turned to the right and will, through lever 39, retract bolt 35 and raise the coin-slide 38 to its normal position. When the key is fully turned, its upper portion will pass to the right of lever-terminal 68 and release lever 64 so latch 60 will rest on the upper edge of 4bolt 34. The coin-slide 38 will be raised to its normal position as the key is thus turned. The mechanism will then be locked to prevent operation until another coin is deposited. During each reciprocation of coin-slide 38, slide-bar 12 will be operated to step the counter up one point.

The invention exemplifies a construction in which all of the parts of a coin-controlled locking mechanism are mounted on an angular bracket, which can be readily removed and replaced from the mounting-plate for repair or inspection, it being only necessary to remove or replace the lug 39 for this purpose. The invention also exemplilies a construction in which the bracket for carrying all of the lock-controlled mechanism is angular and provided with a coin-slide which extends at right-angles to the front-wall of the plate. The invention also exempliiies latching means for the door-locking bolt which is operable directly by the key to prevent retraction of the bolt until after the key has been withdrawn from the cylinder lock. It also exemplifies a simple mechanism for operating the coin-counter from the coin-slide which permits removal of the coincontrolled mechanism independently of the counter-mechanism. It also exemplies a simple closure for the coin-receiving slot to prevent deposit of a second coin when the locker is in use. It also exemplies a channel-standard for the locking-plate, which is reinforced and is provided with simple means for preventing transverse movement of the mounting-plate in the standard. It also exemplifies mechanism which is simple in construction, efcient in operation and can be produced at a low cost.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent is:

1. In coin-controlled locking-mechanism, the combination of a iront-plate, a supporting-bracket comprising a front-member tting against the back of the front-plate and a side-member extending substantially rearwardly at right angles to the plate, a key-operable cylinder-lock mounted in the front-member, a locking-bolt slidably mounted in the front-member, means operable by the lock for shifting the bolt, the front-plate being provided with a coin-receiving slot for receiving a coin edgewise, a plate for controlling the operation of the lock, slidably mounted in the side-member of the bracket and provided with a pocket for receiving the coin from the slot, a connection between the lock and the plate for slidably shifting the plate by the lock, and means, carried by the side-member of the bracket, and controlled by a coin in the pocket, for stopping the movement of the plate and preventing operation of the lock. I

2. In coin-controlled locking-mechanism, the combination of a front-plate having side-flanges, a supporting-bracket comprising a front-member iittingagainst the back and between the iianges of the front-plate and a side-member extending substantially rearwardly at right angles to the plate, a key-operable cylinder-lock mounted in the front-member, means operable by the lock for shifting the bolt, a locking-bolt slidably mounted in the front-member, the front-plate being provided with a slot for receiving a coin edgewise, a plate for controlling the operation of the lock, slidably mounted in the side-mem-ber of the bracket and provided with a pocket for receiving the coin from the slot, a connection between the lock and the plate, for slidably shifting the plate by the lock, means controlled by a coin in the pocket, carried by the side-member of the bracket for stopping the movement of the plate by the lock and preventing the operation of the lock, and means for removably securing the bracket in the front plate.

3. In coin-controlled locking-mechanism, the combination of a front carrying-plate, a supporting-bracket comprising a front-member tting against the back of the carrying-plate and a side-member extending substantially rearwardly at right-angles to the plate and having a vertical channel therein, a key-operable cylinder-lock carried by the front-member, a locking-bolt slidably mounted in the front-member, the plate being provided with a coin-receiving slot, coin-controlled mechanism for the lock comprising a coinslide mounted in the channel in the side-plate and provided with a recess for receiving the coin from the slot, a two-armed lever connected to the lock and to the bolt and the coin-slide for operating the bolt and the coin-slide from the lock, coin-controlled means for controlling the movement of the coin-slide to control the operation of the lock, means for locking the bolt when it is shifted into its locking position by the lock, and means controlled by the insertion of the key in the lock while the bolt is in its locking position for releasing the bolt-locking means.

4. In coin-controlled locking mechanism, the combination of a front carrying-plate, a cylinder lock, a bolt slidable across the back of the frontplate, a connection between the lock and the bolt for shifting the bolt, the front-plate being provided with a slot for receiving a coin edgewise, a vertically slidable coin-plate extending at right angles to the front of the carrying-plate and provided with a pocket for receiving a coin from the slot, a connection between the lock and the plate for shifting the coin-plate, means controlled by the coin-plate for arresting the coin when the bolt is shifted to its locking position by the lock and for releasing the coin when the bolt is shifted to its non-locking position, co-in-controlled means comprising an element for locking the coin-plate and the connections between the lock and the bolt and between the lock and the plate against operation, a closure' for the slot rigid with the slidable bolt and whereby the slot will be closed when the plate is in its coin-releasing position and the bolt is in its locking position.

5. In coin-controlled locking mechanism, the combination oi a key-operable cylinder lock, a locking bolt, a connection between the lock and the bolt for shifting the bolt into and out of locking position, and coin-controlled mechanism comprising a slidable coin-receiving plate, a connection between the plate and the lock for shifting the plate, a dog for engaging the plate to lock the plate, said connections :and the lock against operation, and provided with means engageablel by a coin to hold it in its inoperative position, an arm connected to the dog, normally engaging the plate to initially hold the dog released, the plate 'being provided with means for controlling the arm to render the dog operative when the plate is shifted and the dog is not held by a coin, and means for yieldingly pressing the plate into its normal position,

6. In coin-controlled locking mechanism, the combination of a key-operable cylinder lock, a locking bolt, a connection between the lock and the bolt for shifting the bolt into and out of locking position, and coin-controlled mechanism comprising a slidable coin-receiving plate, a connection between the plate and the lock for shifting the plate, a dog for engaging the plate to lock the plate, said connection and the lock against operation, and provided with means engageable by a coin to hold it in its inoperative position, an arm connected to the dog, normally engaging the plate to initially hold the dog released, the platev being provided with means for controlling the arm to render the dog Operative when the plate is shifted and the dog is not held by a coin, and a spring-pressed cam for pressing the plate into its normal position, the plate having a portion for shifting the cam out of its path when a coin has been deposited in the plate and the plate is shifted by the lock.

7. In coin-controlled locking mechanism, the

`combination of a front carrying-plate, a supporting bracket removably mounted on the back of the carrying-plate, a cylinder lock carried by the bracket and accessible from the iront of the carrying-plate, a plate mounted to slide vertically in the bracket and having a coin-pocket therein, mechanism controlled by a coin in the coinpocket for controlling the plate, a connection between the plate and the lock for shifting the plate when the lock is operated, a register for the deposited co-ins mounted on the back of the carrying plate and register-operating means comprising a bar mounted to slide vertically on the carrying-plate, the plate and bar being provided with interitting abutments which are separable to permit the bracket and the parts carried thereby to be removed independently of the bar.

8. In coin-controlled locking-mechanism, the combination with a front carrying-plate, a cylinder-lock, a locking-bolt slidably mounted to move across the back of the plate, a connection between the bolt and the lock for shifting the bolt by the lock, a slidable coin-plate operable by the lock extending substantially at right angles to the front of the carrying-plate, the front plate being provided with a coin-insertion slot, a connection between the plate and the lock for shifting the plate by the lock, means for arresting movement of the' slidable coin-plate by the lock, the coin-plate being provided with a pocket for retaining a deposited coin in position to hold said arresting means inoperative when the coin-plate is shifted from its normal position, and means controlled by the coin-plate for holding the coin after the coin-plate has been shifted by the lock and while the lock remains in locking position and for releasing the coin when the coin-plate is returned to its normal position by the'return of the bolt to its normal position by the lock.

EDWARD W. MccARRoLL. HENRY HANSEN. 

